JPH0522005Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention excavates stones and gravel in the ground with a digging blade,
This relates to a stone excavator that collects stone and gravel separated from earth and sand.

(Prior art) An elevator having a rotating part in which a large number of iron bars are arranged in a screen shape is attached to the lower part of the processing frame, and a digging blade with its rear end facing the front end of the rotating part is attached to the processing frame. When the stone excavator fixed to the front part is towed by a tractor and travels, it digs the ground with the excavation blade, transfers earth, sand, and gravel to the rotating part of the elevator, and places it between the iron bars of the rotating part. The earth and sand are dropped through the gap, the stones and gravel are transferred to the rear, and the stones and gravel are put into a stone and gravel storage section provided at the rear and collected (see Utility Model Publication No. 55-27362 and Publication No. 55-27363).

In this type of stone digger, the rotating part has both ends of many iron bars attached like a blind to endless rubber belts on both sides, and the soil and sand are dropped onto the ground between the iron bars attached at the required intervals. However, some of the soil and sand remains on the endless belts on both sides and falls into the stone and gravel storage section, resulting in poor soil separation efficiency.

(Problem to be solved by the invention) Since the earth and sand remaining on the endless belts on both sides of the rotating part fall into the stone and gravel storage section, the stone and gravel collected from the ground such as fields are thrown away together and soil the field. There were problems such as a decrease in

(Means for Solving the Problems) In view of the above-mentioned circumstances, the present invention uses a digging blade to dig up the stones and gravel in the ground, and removes the earth and sand on the endless belts on both sides of the rotating part of the elevator from the stones and gravels. An elevator is installed at the bottom of the processing frame, and has a rotating part made by attaching both ends of a large number of iron bars to endless belts on both sides in a blind shape. A digging blade facing the front end of the upper running part of the rotating part is fixed to the front part of the processing frame, and a digging blade is provided on both sides of the front part of the box corresponding to the endless belt changing parts on both sides of the rotating part. A gravel storage section formed by forming a dirt fall path is placed facing the rear end of the upward running section of the rotating section, and a guide plate for dropping stones and gravel into the box body is arranged on the upward running section of the rotating section. To provide a stone excavator whose rear end faces both sides.

(Function) The earth and sand on the endless belts on both sides of the rotating part fall onto the ground from the earth and sand fall path of the stone and gravel storage part, and no earth and sand fall into the box body of the stone and gravel storage part.

(Embodiment) To explain an embodiment of the present invention with reference to the drawings, a stone excavator 1 is connected to a tractor (not shown) via a connecting part 2, and can be freely towed by wheels 3, 3. An elevator 5 is installed at the bottom of the inside of the processing frame 4.
is attached, and the rear end of the digging blade 7 faces the front end of the upper running part 6a of the rotating part 6 of the elevator 5, and the digging blade 7 is fixed to the front part of the processing frame 4 in a shape that slopes downward in the front direction. There is.

The rotating part 6 of the elevator 5 has a large number of iron bars 8,
Both ends of 8... are attached in parallel to endless belts 9, 9 disposed on both sides in a blind shape to form an endless rotating body, and are hung on a driving wheel 10 and a driven wheel 11 so as to be freely rotatable in the direction of arrow a. .

A gravel storage section 12 is provided facing the rear end of the upward running section 6a of the rotating section 6.

The stone and gravel storage section 12 is located at the front surface 13a of the box body 13.
Sediment fall paths 14, 14 are formed on both sides of the
These earth and sand fall paths 14 are shown in Figs. 3 and 4, respectively.
As shown in the figure and FIG.
15 and a back plate part 16, it has a U-shaped cross section that is open at the front, has an opening width slightly larger than the width of the endless belt 9 on both sides of the front part 13a, and has vertically long side plate parts 15, 15. A notch 17 is formed in the upper part of the rotating part 6 in a shape along the upper running part 6a and the rear end turning part 6b, and the front ends of the vertically long side plate parts 15, 15 below the notch 17 are connected to the box body 13. front part 1
It is fixed to 3a.

Further, a guide plate 18 is fixed to the upper edge of the vertically long side plate parts 15, 15, and guide plates 19 are provided facing both sides of the rear end of the upward running part 6a of the rotating part 6. A cover plate 20 is provided so that its lower end faces the upper end opening 14a of the drive wheel 14 and its upper end covers the driven vehicle 11.

In this case, a hanging presser member 21 is provided above the upward running portion 6a of the rotating portion 6 in order to prevent the stones from jumping up.

Since the present invention is configured as described above, the connecting portion 2
When the stone excavator 1 is connected to a tractor (not shown) through a tractor (not shown) and is towed, the digging blade 7 excavates the ground and as it moves forward, dirt and gravel are excavated together. Earth, sand, and stones are guided and transferred to the front end of the upper running part 6a of the rotating part 6 of the elevator 5.
The earth, sand and gravel transferred to the upper running part 6a of the rotating part 6 fall from between the iron bars 8 and 8 arranged like a blind, and the stones and gravel straddle the iron bars 8 and 8 and move backward. The stones are transferred and thrown into the stone and gravel storage section 12 provided at the rear of the processing frame 4 from the rear end of the upward running section 6a.

During such operation, the dirt and sand that is on the endless belts 9, 9 on both sides of the upper running part 6a of the rotating part 6 and is sent backward without falling from the iron bars 8, 8 is transferred from the upper running part 6a to the lower running part. It falls onto the ground at the rear end deflection section 6b.

The cover plate 20 prevents splashing when the earth and sand fall from the top of the endless belts 9, 9 into the falling path 14, and the guide plates 19, 1
9 guides the stones so that they do not fall into the earth and sand fall path 14 and fall into the box body 13.

(Effects of the invention) The present invention forms earth and sand fall paths on both sides of the front side of the box of the rock and gravel storage section, and allows the earth and sand transferred on the endless belts on both sides of the rotating section to fall onto the ground and fall into the box. Because we prevent soil from entering, we do not deplete the soil.
It has practical effects such as further improving the efficiency of stone removal from the ground.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the stone excavator of the present invention, Fig. 2 is an explanatory view of the main parts thereof, Fig. 3 is a front view of the stone and gravel storage section,
Fig. 4 is an explanatory diagram of the related structure of the earth and sand fall path, and Fig. 5 is an enlarged perspective view of the main part. 1... Excavator, 2... Connection part, 3... Wheel, 4
...Processing frame, 5...Elevator, 6...Rotating part,
6a... Upper running part, 6b... Rear end deflection part, 7... Digging blade, 8... Iron bar, 9... Endless belt, 12...
Stone and gravel storage section, 13... Box body, 14... Sediment fall path, 15... Longitudinal side plate part, 16... Back plate part, 17
... Notch, 19 ... Guide plate, 20 ... Cover, 21
...Hanging holding member, (a)...earth and sand, (b)...stone gravel.

Claims (1)

[Scope of utility model registration request] An elevator is installed at the bottom of the processing frame, and has a rotating section in which both ends of a large number of iron bars are attached to endless belts on both sides in the form of blinds, and the rear end faces the front end of the upward running section of the rotating section. The removal blade is fixed to the front part of the processing frame, and a stone and gravel storage part is formed on both sides of the front part of the box body to form a dirt falling path corresponding to the endless belt changing parts on both sides of the rotating part. A stone excavator, which faces the rear end of the upper running part of the rotating part, and has guiding plates for dropping stone and gravel into the box body facing both sides of the rear end of the upper running part of the rotating part.